Brake Light wont go out - 1996 Chevrolet Blazer

Posted / edited by AnonymousUser on : 21-01-2019

Answers :

The brake lights stay on even when the vehicle has been restored to the \015\012"before" condition?!? Now that's strange. I'm assuming the brake lights \015\012worked properly before you did anything with the trailer hookup. Is that\015\012 correct? Do the brake lights work OK when a trailer is hooked up to the\015\012 trailer lighting harness? Regardless, if the brake lights stay on all \015\012the time, there is a continuous 12V to the bulbs to ground. You have a \015\012wiring short somewhere in the vehicle. Have you checked the wiring for \015\012bare spots (caused by rubbing) or cuts in the wires.\015\012

Since the brake lights won't turn off, you have created a continuous \015\012path of 12V through the bulbs to ground, regardless of the brake switch \015\012operation. If you did not use the plug in type of wiring harness to \015\012attach the "trailer plug", then I would systematically undo each wire \015\012that you attached to and see what fixes the problem. I assume you know \015\012that the Blazer has a trailer connection plug-in location tucked up \015\012under the rear bumper. You simply unplug the mating harnesses, plug in \015\012the trailer wiring connector, plug in the disconnected harnesses and \015\012wha-la you should be good to go.